! @brief append an unescaped token at the end of the reference pointer @param[in] token token to add @complexity Amortized constant.

return iterator end (needed for range-based for)

return iterator begin (needed for range-based for)

! @brief return whether pointer points to the root document @return true iff the JSON pointer points to the root document @complexity Co

! @brief get next character from the input This function provides the interface to the used input adapter. It does not throw in case the

! @brief internal implementation of the serialization function This function is called by the public member function dump and organizes t

add a character to token_buffer

! @brief return the type as string Returns the type name as string to be used in error messages - usually to indicate that a function was

! @brief create an empty value with a given type Create an empty JSON value with a given type. The value will be default initialized with

@param point -- 度量坐标值[0~1] @return 实际坐标值

是角度

! @brief return whether value is an object This function returns true if and only if the JSON value is an object. @return `true` if type

access to successor

! @brief returns an iterator to one past the last element Returns an iterator to one past the last element. @image html range-begin-end.

! @return a string representation of the last read byte */

! @brief return whether value is an array This function returns true if and only if the JSON value is an array. @return `true` if type i

! @brief return whether value is null This function returns true if and only if the JSON value is null. @return `true` if type is null,

x是0，y是半径